移动app

uni-im示例/uni_modules/uni-id-pages/uniCloud/cloudfunctions/uni-id-co/common/sensitive-aes-cipher.js

@@ -0,0 +1,64 @@
+const crypto = require('crypto')
+const { ERROR } = require('./error')
+
+function checkSecret (secret) {
+  if (!secret) {
+    throw {
+      errCode: ERROR.CONFIG_FIELD_REQUIRED,
+      errMsgValue: {
+        field: 'sensitiveInfoEncryptSecret'
+      }
+    }
+  }
+
+  if (secret.length !== 32) {
+    throw {
+      errCode: ERROR.CONFIG_FIELD_INVALID,
+      errMsgValue: {
+        field: 'sensitiveInfoEncryptSecret'
+      }
+    }
+  }
+}
+function encryptData (text = '') {
+  if (!text) return text
+
+  const encryptSecret = this.config.sensitiveInfoEncryptSecret
+
+  checkSecret(encryptSecret)
+
+  const iv = encryptSecret.slice(-16)
+
+  const cipher = crypto.createCipheriv('aes-256-cbc', encryptSecret, iv)
+
+  const encrypted = Buffer.concat([
+    cipher.update(Buffer.from(text, 'utf-8')),
+    cipher.final()
+  ])
+
+  return encrypted.toString('base64')
+}
+
+function decryptData (text = '') {
+  if (!text) return text
+
+  const encryptSecret = this.config.sensitiveInfoEncryptSecret
+
+  checkSecret(encryptSecret)
+
+  const iv = encryptSecret.slice(-16)
+
+  const cipher = crypto.createDecipheriv('aes-256-cbc', encryptSecret, iv)
+
+  const decrypted = Buffer.concat([
+    cipher.update(Buffer.from(text, 'base64')),
+    cipher.final()
+  ])
+
+  return decrypted.toString('utf-8')
+}
+
+module.exports = {
+  encryptData,
+  decryptData
+}